CN206147020U - Detection apparatus for overvoltage protection device - Google Patents
Detection apparatus for overvoltage protection device Download PDFInfo
- Publication number
- CN206147020U CN206147020U CN201620926614.7U CN201620926614U CN206147020U CN 206147020 U CN206147020 U CN 206147020U CN 201620926614 U CN201620926614 U CN 201620926614U CN 206147020 U CN206147020 U CN 206147020U
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- Prior art keywords
- protection device
- overvoltage protection
- rear end
- utility
- model
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Abstract
The utility model provides a detection apparatus for overvoltage protection device, portable are applied to on -the -spot testing. The utility model discloses a detection apparatus for overvoltage protection device, its characterized in that includes switch, over -current protection unit is connected to the switching power supply output, the over -current protection unit rear end is connected with the voltage regulator, the voltage regulator rear end is connected with auto transformer, the auto transformer output links the high -tension voltmeter, auto transformer output both ends are series current table and protection resistance respectively, and ampere meter and protection resistance rear end have connect the detection chuck respectively, the technical effects of the utility model comprises overvoltage protection device is coming into operation precedingly and is using the back and carry out prophylactic test to series gap combination formula overvoltage protection device every year to avoid bringing potential hidden danger for safe operation of power system.
Description
Technical field
The utility model is related to overvoltage protective device technical field, and in particular to a kind of series gap combination overvoltage
The detection means of protector.
Background technology
In annual electric preventive test, it is an entirety that checking experiment personnel are mistakenly considered overvoltage protection device,
Normal high voltage electrical test cannot be carried out, overvoltage protection device electrical test can only be abandoned, so as to transport to power system security
Row brings potential hidden danger.Overvoltage protection device should all carry out preventive trial every year before being taken into use and using rear,
Four terminals of protector should be pulled down from other electric equipments during test, not allow to be tested when connecting with miscellaneous equipment.
The utility model provides a kind of detection means of overvoltage protection device, and portable is applied to Site Detection test.
The content of the invention
The utility model provides a kind of detection means of overvoltage protection device, and portable is applied to Site Detection test.This
The technical scheme of utility model is as follows：A kind of detection means of overvoltage protection device, it is characterised in that described including power switch
Switched power output connects over-current protecting unit, and the over-current protecting unit rear end is connected with pressure regulator, after the pressure regulator
End is connected with auto-transformer, and the auto-transformer output end simultaneously couples high-tension voltmeter, the auto-transformer output end
Series electrical flow table and protective resistance are distinguished in two ends, and ammeter and protective resistance rear end are connected to respectively detection chuck.
Further optimization, the power switch inlet wire connects 220V alternating currents.
It is of the present utility model to have technical effect that overvoltage protection device before being taken into use and using rear annual to series connection
The box-like overvoltage protection device of dwell set carries out preventive trial, to avoid bringing potential risk to safe operation of power system.
Description of the drawings
A kind of electrical schematic diagram of the detection means of overvoltage protection device that Fig. 1 the present embodiment is provided.
Specific embodiment
To make to have a better understanding and awareness architectural feature of the present utility model and the effect reached, to compared with
Good embodiment and accompanying drawing coordinates detailed description, is described as follows：
As shown in figure 1, the present embodiment provides a kind of detection means of overvoltage protection device, it is characterised in that open including power supply
Close, the switched power output connects over-current protecting unit, and the over-current protecting unit rear end is connected with pressure regulator, the tune
Depressor rear end is connected with auto-transformer, and the auto-transformer output end simultaneously couples high-tension voltmeter, the auto-transformer
Series electrical flow table and protective resistance are distinguished in output end two ends, and ammeter and protective resistance rear end are connected to respectively detection chuck.
As shown in figure 1, for series gap combination overvoltage protector, power-frequency sparkover voltage test, this reality should be carried out
The detection means of example offer is provided, power-frequency voltage is applied respectively between the two-terminal of protector A, B, C, D two during test, adjust certainly
Coupling transformer ZT, slow pressurization, observes the curent change of ampere Table A.When the electric current of ampere Table A increases suddenly, gap is represented
Electrode discharge, records the magnitude of voltage of now voltage Table V, and this value is numerical value of the power-frequency sparkover voltage in transformer primary side, this value
It is multiplied by the no-load voltage ratio of step-up transformer ST, as the power-frequency sparkover voltage value of the two-phase.Because sparking electrode allows certain dividing
Divergence, and the difference of method of testing, on-the-spot test value should not exceed the 20% of delivery test value.If exceeding the scope, should stop
Only run, notify that producer is processed in time.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply principle of the present utility model, the utility model also has respectively on the premise of without departing from the utility model spirit and scope
Changes and improvements are planted, these changes and improvements are both fallen within the range of claimed the utility model.The utility model is required
Protection domain defined by appending claims and its equivalent.
Claims (2)
1. a kind of detection means of overvoltage protection device, it is characterised in that including power switch, the switched power output connects
Over-current protecting unit is connect, the over-current protecting unit rear end is connected with pressure regulator, and the pressure regulator rear end is connected with self coupling transformation
Device, the auto-transformer output end simultaneously couples high-tension voltmeter, and series current is distinguished at the auto-transformer output end two ends
Table and protective resistance, ammeter and protective resistance rear end are connected to respectively detection chuck.
2. the detection means of a kind of overvoltage protection device according to claim 1, it is characterised in that：The power switch enters
Line connects 220V alternating currents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620926614.7U CN206147020U (en) | 2016-08-23 | 2016-08-23 | Detection apparatus for overvoltage protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620926614.7U CN206147020U (en) | 2016-08-23 | 2016-08-23 | Detection apparatus for overvoltage protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206147020U true CN206147020U (en) | 2017-05-03 |
Family
ID=58627976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620926614.7U Expired - Fee Related CN206147020U (en) | 2016-08-23 | 2016-08-23 | Detection apparatus for overvoltage protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206147020U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107436388A (en) * | 2017-07-28 | 2017-12-05 | 中国西电电气股份有限公司 | A kind of evaluation method of power frequency testing transformer safeguard measure effect |
| CN109142921A (en) * | 2018-08-13 | 2019-01-04 | 安徽硕日光电科技有限公司 | A kind of distribution line over-voltage protector experimental provision |
| CN109374683A (en) * | 2018-08-24 | 2019-02-22 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of screening electrodes line is to cooling water pipe lesion mimic experimental rig and method |
-
2016
- 2016-08-23 CN CN201620926614.7U patent/CN206147020U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107436388A (en) * | 2017-07-28 | 2017-12-05 | 中国西电电气股份有限公司 | A kind of evaluation method of power frequency testing transformer safeguard measure effect |
| CN107436388B (en) * | 2017-07-28 | 2019-11-05 | 中国西电电气股份有限公司 | A kind of evaluation method of power frequency testing transformer safeguard measure effect |
| CN109142921A (en) * | 2018-08-13 | 2019-01-04 | 安徽硕日光电科技有限公司 | A kind of distribution line over-voltage protector experimental provision |
| CN109374683A (en) * | 2018-08-24 | 2019-02-22 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of screening electrodes line is to cooling water pipe lesion mimic experimental rig and method |
| CN109374683B (en) * | 2018-08-24 | 2021-01-12 | 中国南方电网有限责任公司超高压输电公司广州局 | Cooling water pipe damage simulation test device and method for voltage-sharing electrode wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 Termination date: 20190823 |